Matrix SETU VFXTH System Manual
142
Automatic Number Translation (ANT)
Automatic Number Translation (ANT) is used to modify the number string—entire number or part thereof—into the
desired number string as per your requirement. ANT is useful when you need to modify the Called/Calling number,
before the system routes the call further.
For example, in India the PSTN requires you to dial the prefix 00 for calling international numbers, whereas the
ITSP you have subscribed the SIP Trunk with, restricts the dialing of the prefix 00. If you dial this prefix, your call will
be rejected by the ITSP. The ANT Table will enable you to modify the Number string as per your requirement so that
the calls routed through the SIP Trunk are not rejected.
The Automatic Number Translation
feature can be applied on all the SIP Trunks, FXO Ports and the FXS Ports.
Automatic Number Translation makes use of Automatic Number Translation Table. The ANT Table consists of three
columns:
•
Number:
In this column, enter the numbers that you want the system to modify.
•
Strip Digit:
In this column, enter the number of digit(s) to be stripped off by the system from the Called/
Calling number string. If you do not want any digits to be stripped, enter ‘0’.
•
Add Prefix:
In this column, enter the digit(s) which are to be added as prefix to the Called/Calling number
string by the system before routing it further.
To apply this feature on the desired port,
•
on a piece of paper make a table, in the first column note down the numbers that need to be modified. In
the second column enter the number of digits you want the system to strip off (if required), and in the third
column, enter the number you want the system to add as prefix (if required).
•
configure the
Automatic Number Translation Table
. You can configure upto 8 different ANT Tables.
•
enable
Automatic Number Translation (ANT) for Called Number
and/or
Automatic Number
Translation (ANT) for Calling Number
on the respective ports/trunks, on which you want to apply this
feature.
•
assign the
Automatic Number Translation Table
you configured.
•
configure the
Pause Timer
, if applicable.
For instructions, see
,
and
under
Now, whenever there is a call on/from the Port on which you have applied this feature, SETU VFXTH will match the
Called/Calling number with the Number configured in the Automatic Number Translation Table using the best match
found logic.
•
If a match is found, the system will check whether and how many digits to strip off. It will strip off digits
according to the number you have entered in the Strip Digit column. If ‘0’ is configured in the Strip Digit
column, it will check the Add Prefix column. If configured, the system will add that prefix. If no prefix is
configured, the system will route the same number string further.
